JP2021100258A - Active time processing in two-step grant - Google Patents

Abstract

To provide a wireless communication device and a method that receive two-step grant for uplink transmission from a wireless communication network in a wireless terminal device that operates according to an intermittent reception (DRX) setting.SOLUTION: A wireless communication device determines whether the device has received a first trigger of two-step grant (502), and in response to a determination that the device has received the first trigger, enters a state of listening to a physical downlink control channel in search of a message from a network (504).SELECTED DRAWING: Figure 5

Description

The present disclosure relates to wireless communication in general, and more specifically, a wireless communication device configured to operate according to an intermittent reception (DRX) setting and receive a two-step grant for uplink transmission from a wireless communication network. Regarding.

The user equipment (UE) may be configured with various intermittent reception (DRX) settings to save battery power. When the UE is in DRX sleep, the UE does not need to listen on the physical downlink control channel (eg, PDCCH). When the UE is in DRX active time, the UE typically has to listen on the PDCCH channel to wait for possible scheduling requests from eNodeB (eNB).

The UE is in DRX active time if any of the conditions specified in section 5.7 of the MAC standard (3GPP TS36.321 v13.2.0) is true, and these conditions are summarized below.
1. 1. DRX parameters are not set or
2. The DRX parameter is set and the 2.1 drx inactivity timer is running, or the 2.2 drx retransmission timer is running, or the 2.3 mac conflict resolution timer is running. Or 2.4 the scheduling request sent on the PUCCH may be pending, or an uplink grant may occur for HARQ retransmission during 2.5 pending, and the data is in the corresponding HARQ buffer. Or 2.6 After successfully receiving a random access response for an explicitly signaled preamble, no PDCCH indicating a new transmission addressed to the UE's C-RNTI has been received (only to the UE in RRC_CONNECTED). apply).
Otherwise,
3 DRX sleep is in use.

DRX Cycle and drx Inactivity Timer A UE in the RRC_CONNECTED state and configured with the DRX function can be configured with both long-term and short-term DRX cycles. The intent of the long-term DRX cycle is that the UE should be able to sleep for an extended period of time and wake up periodically only during the DRX active time to listen for any new scheduling requests. The intent of the short-term DRX cycle is that the UE should be awakening more often than the long-term DRX cycle to listen for any scheduling requests. The period during which the UE is awake to listen for scheduling requests is called the on-duration period and consists of some period during which the UE is awake.

When the UE is scheduled, a drx inactivity timer is started, and the UE is awakening to listen for any scheduling requests while this timer is running. When the drx inactivity timer expires, the UE goes into short-term DRX sleep, if configured. Otherwise, the UE goes into long-term DRX sleep. Also, if the UE is not scheduled for a set number of short-term DRX cycles, the UE goes into long-term DRX sleep.

Two-step grant framework In Long Term Evolution (LTE), the eNB provides an uplink transmit grant to the UE via PDCCH signaling. If the UE receives an uplink transmit grant via the PDCCH at transmit time interval (TTI) N, the UE performs the associated PDCCH transmit at TTI N + 4.

With LTE Release 14, a two-step grant framework was introduced. According to the two-step scheduling framework, the UE may be scheduled with two PDCCH messages, and the combination of the two messages allows the UE to perform uplink transmissions. In this framework, the UE first receives a PDCCH transmission indicating a first trigger (sometimes referred to as "step 1" or "physical uplink shared channel (PUSCH) trigger A"), which is a second PDCCH transmission. Has a related second trigger (sometimes referred to as "step 2" or "PUSCH trigger B") transmitted in.

The following is an excerpt from the 3GPP CR for 36.213, which describes a two-step grant framework.
For the serving cell, which is the LAAS cell, the UE
-In response to the detection of PDCCH / EPDCCH with DCI format 0A / 0B / 4A / 4B and the'PUSCH trigger A'field set to '0' within the subframe n intended for the UE, or- A PDCCH / EPDCCH having DCI format 0A / 0B / 4A / 4B within the most recent subframe from the subframe nv intended for the UE and having the'PUSCH trigger A'field set to '1'. In response to detection and in response to detection of a PDCCH with a DCI CRC scrambled by CC-RNTI within subframe n and the'PUSCH trigger B'field set to '1',
According to PDCCH / EPDCCH and HARQ process ID mod (n _{HARQ_ID} + i, N _HARQ ), i = 0,1,. .. .. , N-1 in the subframe n + l + k + i, subject to the channel access procedure described in Section 15.2.1, the corresponding PUSCH transmission is performed, where.
-For DCI format 0A / 4A, N = 1, and the value of N is determined by the'number of scheduled subframes' field in the corresponding DCI format 0B / 4B.
-The UE is set to the maximum value of N by the upper layer parameter maxNumberOfSchedSubframes-Format0B for DCI format 0B and the upper layer parameter maxNumberOfSchedSubframes-Format4B for DCI format 4B.
-According to Table 8.2d if the'PUSCH Trigger A'field is set to '0', otherwise according to Table 8.2e, k by the scheduling delay field in the corresponding DCI 0A / 0B / 4A / 4B The value of is determined,
_-The HARQ process count field in the corresponding DCI format 0A / 0B / 4A / 4B and _HARQ = 16 determine the value of n HARQ_ID.
-For the'PUSCH trigger A'field set to '0' in the corresponding DCI format 0A / 0B / 4A / 4B
-L = 4,
-Otherwise,
The value of -l is determined by the'UL setting for LAA'field in the corresponding DCI where the CRC was scrambled by CC-RNTI according to the procedure of No. 13A and the'PUSCH trigger B'field was set to '1'. It is a UL offset that is
-The value of v is determined by the validation duration field in the corresponding PDCCH / EPDCCH with DCI format 0A / 0B / 4A / 4B according to Table 8.2f and the'PUSCH trigger A'field set to '1'. ,
-The minimum value of l + k supported by the UE is included in the UE-EUTRA capability.

As mentioned above, according to the two-step grant framework, the UE receives two messages, which are combined to determine when the UE should perform the uplink transmission.

In LTE's current DRX framework, the UE initiates an inactivity timer during which the UE is in active time (ie, "awake") when the PDCCH indicates an uplink send. In a scenario where a two-step grant is applied, as a result of this, the UE remains awake only if the UE receives step 2 because the UE has not yet received the actual grant before receiving step 2. It becomes. Therefore, as a result of this, the UE may not be in active time and therefore may not monitor the PDCCH. Therefore, the UE cannot be reached by the eNB.

An embodiment of this disclosure describes a UE that may be in active time during a time prior to the time the UE receives the full grant. That is, the UE can be in active time prior to step 2 when a two-step grant is used. This allows the eNB to send messages to the UE via the PDCCH even if the full grant is not provided to the UE. This can improve user throughput and system performance. The active time may include the time the UE is in a state of listening to the physical downlink control channel for a message from the network.

According to some embodiments, the method is performed by a wireless communication device that operates according to the DRX configuration and is configured to receive a two-step grant for uplink transmission from the wireless communication network. In this method, the device seeks a message from the network and is physically determined in response to the determination of whether the device has received the first trigger of the two-step grant and the determination that the device has received the first trigger. Includes entering a state of listening on the downlink control channel.

According to some embodiments, a wireless communication device configured to operate according to the DRX configuration and to receive a two-step grant for uplink transmission from the wireless communication network is for communicating with the network. The transmitter / receiver circuit configured in the above and the processing circuit associated with the transmitter / receiver circuit so as to be operable are included. The processing circuit determines whether the device has received the first trigger of the two-step grant, and depending on the determination that the device has received the first trigger, the device sends a message from the network. It is configured to seek and put the physical downlink control channel into a listening state.

According to some embodiments, the method is performed by a network node of the wireless communication network so that the network node provides a two-step grant for uplink transmission to the wireless communication device operating according to the DRX configuration. It is composed of. This method sends the first trigger of the two-step grant and the device listens to the physical downlink control channel for a message from the network before sending the second trigger of the two-step grant. Includes sending a physical downlink control channel message to the device so that it can be received during.

According to some embodiments, a network node of a wireless communication network that is configured to provide a two-step grant for uplink transmission to a wireless communication device operating according to the DRX configuration. Includes a transmitter / receiver circuit configured to communicate with the device and a processing circuit operably associated with the transmitter / receiver circuit. The processing circuit sends the first trigger of the two-step grant via the transmitter / receiver circuit and the device physically downlinks for a message from the network before sending the second trigger of the two-step grant. It is configured to send a physical downlink control channel message to the device so that it can be received while listening to the control channel.

According to some embodiments, it was performed in a processing circuit of a wireless communication device configured to operate according to the DRX configuration and to receive a two-step grant for uplink transmission from the wireless communication network. In this case, the device is made to determine whether the device has received the first trigger of the two-step grant, and the device seeks a message from the network in response to the determination that the device has received the first trigger. A non-temporary computer-readable storage medium that stores a computer program that contains program instructions that put the downlink control channel into a listening state.

According to some embodiments, a network node of a wireless communication network that is configured to provide a two-step grant for uplink transmission to a wireless communication device operating according to the DRX configuration. When executed in the processing circuit of, causes the network node to send the first trigger of the two-step grant, and the device seeks a message from the network before sending the second trigger of the two-step grant. A non-temporary computer-readable storage medium that contains computer programs that contain program instructions that cause a device to send a physical downlink control channel message to be received while listening to the physical downlink control channel.

According to some embodiments, a method performed by a wireless communication device capable of operating to receive a two-step grant. The method may include determining that the device has received the first step of the two-step grant and entering the active time in response to the determination that the device has received the first step.

The method may further include determining that the first step has been invalidated and, depending on the determination, exiting the active time. The method may also include determining that the device has received the second step and, depending on the determination, exiting the active time.

Another embodiment of the present disclosure is directed to a wireless communication device configured to receive a two-step grant. The device is configured to determine that the device has received the first step of the two-step grant and to exit the active time depending on the determination that the device has received the first step. It may include a processing circuit.

The processing circuit may be configured to determine that the first step has become invalid and, in response to the determination, to exit the active time. The processing circuit may also be configured to determine that the device has received the second step and, in response to the determination, to exit the active time.

Of course, various modules and software elements of the hardware may be used alone or in combination to perform the steps described herein in one or any combination of network nodes. Other advantages and features of various embodiments will be apparent to those skilled in the art in light of the detailed description below and the accompanying drawings.

The accompanying drawings, which are incorporated and part of this specification, illustrate some aspects of the present disclosure and, along with the description, serve to explain the principles of the present disclosure.
A cellular communication network according to some embodiments of the present disclosure will be described. FIG. 5 is a diagram of network nodes according to some embodiments. It is an exemplary flowchart illustrating the method by network nodes according to some embodiments. FIG. 5 is a diagram of a wireless device according to some embodiments. It is an exemplary flowchart illustrating the wireless device method according to some embodiments. The case where the UE is in the active time from step 1 to step 2 will be described according to an exemplary embodiment. According to an exemplary embodiment, a case where the UE is in the active time from step 1 to some period, but the UE leaves the active time if step 2 does not reach within that period will be described. The case where the UE is in the active time after receiving the step 1 according to the embodiment and the UE stays in the active time even if the step 2 is received will be described. The case where the UE is in the active time from step 1 to the uplink transmission activated by step 2 will be described according to an exemplary embodiment. According to an exemplary embodiment, the case where the UE is in the active time from after the reception time T in step 1 to the uplink transmission activated by step 2 will be described. According to an exemplary embodiment, the case where the UE is in the active time from the reception time T in step 1 to the reception in step 2 will be described. A case where the UE starts an inactivity timer in response to the invalidation of step 1 will be described according to an exemplary embodiment. FIG. 5 is a diagram of a wireless device including a module according to some embodiments. FIG. 5 is a diagram of a network node containing modules according to some embodiments.

The embodiments described below provide information to enable one of ordinary skill in the art to implement the embodiments and illustrate the best modes of implementation of the embodiments. Reading the following description in the light of the accompanying drawings will help those skilled in the art understand the concepts of this disclosure and recognize applications of these concepts not specifically addressed in this document. It should be understood that these concepts and applications fall within the scope of this disclosure.

Any two or more embodiments described in this document may be combined in any way with each other. Further, although some examples are given in the context of the Internet of Things (IoT) in this document, the embodiments described in this document are not limited to IoT, and network nodes or user devices (UEs) are cell identifiers, networks. It is also applicable in the more general cases where identifiers and / or frequency hopping (FH) patterns may need to be signaled or received.

In some embodiments, the non-limiting term "UE" is used. As used herein, a UE can be any type of wireless device capable of communicating with a network node or other UE through a wireless signal. The UE includes a wireless communication device, a target device, a device-to-device (D2D) UE, a mechanical UE, a UE capable of machine-to-machine communication (M2M), a sensor mounted on the UE, and an iPad (registration). Trademarks), tablets, mobile terminals, smartphones, laptop machine-to-machine (LEE), laptop-equipped devices (LME), universal serial bus (USB®) dongle, customer premises equipment (CPE), etc. May be good.

Also, in some embodiments, the generic term "network node" is used. This includes base stations, radio base stations, base transmitter / receiver stations, base station controllers, network controllers, advanced node B (eNB), node B, multicell / multicast coordinating entity (MCE), relay nodes, access. Point, radio access point, remote radio unit (RRU) remote radio head (RRH), core network node (eg MME, self-composition network (SON) node, coordination node, etc.), or external node (eg, No. 1 It can be any kind of network node that may consist of wireless network nodes (three-party nodes, nodes outside the current network).

The embodiment is applicable to a multi-carrier or carrier aggregation (CA) operation of a UE in which the UE can receive and / or transmit data to two or more serving cells as well as a single carrier. The term carrier aggregation (CA) is also referred to as "multicarrier system", "multicell operation", "multicarrier operation", "multicarrier transmission" and / or reception (eg, interchangeably referred to). In CA, one of the component carriers (CC) is the primary component carrier (PCC), or simply the primary carrier or anchor carrier. The rest are also referred to as secondary component carriers (SCCs), or simply secondary carriers or supplemental carriers. Serving cells are referred to interchangeably with primary cells (P cells) or primary serving cells (PSCs). Similarly, a secondary serving cell is referred to interchangeably with a secondary cell (S cell) or a secondary serving cell (SSC).

The term "signaling" as used herein refers to upper layer signaling (eg, via radio resource control (RRC)) and lower layer signaling (eg, via physical control channel or broadcast channel) and combinations thereof. And any of the above may be included. Signaling may be implicit or explicit. The signaling may also be unicast, multicast, or broadcast. Signaling may also be direct to another node or via a third node.

As used herein, the term "signal transmission" may refer to a type of periodic signal transmitted by a network node on the downlink or by a UE on the uplink. The signal transmission may include a physical signal and / or a physical channel. The physical signal does not propagate the upper layer information, but the physical channel propagates the upper layer information. These signals are used by network nodes and / or by UEs to perform one or more operations.

FIG. 1 illustrates a cellular communication network 10 in which the embodiments of the present disclosure are implemented. In some embodiments, the cellular communication network 10 is a radio access network (sometimes referred to herein as a "network node 12") that includes at least one base station 12 (sometimes referred to herein as a "network node 12") that provides the cells of the cellular communication network 10. RAN) (eg, Advanced Universal Mobile Communication Systems (UMTS) Radio Access Network (E-UTRAN) for LTE). The network node 12 provides wireless access to wireless devices such as the UE 14 located within individual cells. The network node 12 may be communicably coupled to another base station or another network node via a base station-to-base station interface (eg, the LTE X2 interface). Further, in some embodiments, the network node 12 is connected to a core network (eg, LTE Evolved Packet Core (EPC)) via a corresponding interface (eg, LTE S1 interface). The interface. Core networks are, as those skilled in the art will understand, various core networks such as mobility management entities (MMEs), serving gateways (S-GWs) and packet data network (PDN) gateways (P-GWs). Includes network nodes.

FIG. 2 is a diagram of a network node 12 according to some embodiments of the present disclosure. In some embodiments, the network node 12 may be a base station such as an eNB. The network node 12 includes a circuit containing an instruction to cause the network node 12 to perform the methods and functions described in this document when executed. In one example, the circuit may include one or more processors 30 and a memory 32 containing instructions. The baseband unit 28 also includes a network interface 34. The network interface 34 may include one or more components (eg, a network interface card) that connect the transmitter network node to other systems. The network node 12 also includes at least one radio unit 36 having one or more transmitters 38, one or more receivers 40, and one or more antennas 42. In some embodiments, the functions of the network node 12 or any one of the embodiments described herein are described in software, eg, stored in memory 32 and executed by processor 30. It will be carried out at.

In some embodiments, it comprises an instruction to cause at least one processor 30 to perform the function of network node 12 according to any one of the embodiments described herein when executed by at least one processor 30. Computer programs are provided. The processor 30 is configured to provide a two-step grant for uplink transmission to wireless communication devices operating according to the DRX configuration. The processor 30 is configured to transmit the first trigger of the two-step grant via the radio unit 36. The processing circuit 30 is also physically down to the device so that it is received while the device is listening for a message from the network and listening to the physical downlink control channel before sending the second trigger of the two-step grant. It is configured to send link control channel messages.

The device may start a timer that controls the duration of the active time on the device, i.e. the duration of the time the device is in the above state. Therefore, the processor 30 may be configured to transmit the duration of the timer initiated by the device, and the device exits the above state only upon expiration of the timer. The processor 30 may also be configured to determine if the device is configured to enter the above state before receiving the second trigger.

In some embodiments, media are provided that include the computer program products described above. The medium is one of an electrical signal, an optical signal, a wireless signal, or a computer-readable storage medium (eg, a non-transitory computer-readable medium such as memory 32).

FIG. 3 is an exemplary flowchart illustrating various functions of method 300 performed, for example, by network node 12. Method 300 sends the first trigger of the two-step grant (block 302) and the physical downlink control channel where the device seeks a message from the network before sending the second trigger of the two-step grant. Includes sending a physical downlink control channel message to the device (block 304) so that it is received in a listening state. The method 300 may then include transmitting a second trigger.

Method 300 may include transmitting the duration of the timer initiated by the device, the device exiting the above state only upon expiration of the timer. In some cases, the method 300 also includes determining whether the device is configured to enter the above state before receiving the second trigger.

FIG. 4 is a diagram of a wireless communication device such as the UE 14 according to some embodiments. As described, the UE 14 includes at least one processor 48 and memory 50. The UE 14 also includes a transmitter / receiver 52 having one or more transmitters 54, one or more receivers 56, and one or more antennas 58. In some embodiments, the function of the wireless device 14 described with respect to the UE 14 or any one of the embodiments described herein is performed, for example, by software stored in memory 50 and executed by processor 48. .. The transmitter / receiver 52 may include one or more components that use one or more antennas 58 to transmit and receive signals and connect the UE 14 to other systems.

In some embodiments, when executed by at least one processor 48, it receives a two-step grant for uplink transmission from a wireless communication network that is described herein and configured to operate according to the DRX settings. A computer program is provided that includes instructions that cause at least one processor 48 to perform the functions of the UE 14 according to any one of the embodiments comprising the wireless communication device configured as described above. The processor 48 determines whether the device has received the first trigger of the two-step grant, and the device sends a message from the network according to the determination that the device has received the first trigger. It is configured to seek and put the physical downlink control channel into a listening state.

In some embodiments, media are provided that include the computer program products described above. The medium is one of an electrical signal, an optical signal, a wireless signal, or a computer-readable storage medium (eg, a non-transitory computer-readable medium such as memory 50).

FIG. 5 is an exemplary flowchart illustrating various functions of method 500 performed, for example, by UE 14. The method includes determining if the device has received a first trigger of a two-step grant (block 502). Method 500 also includes entering a state in which the device listens for a physical downlink control channel in response to a determination that the device has received a first trigger (block 504). Not surprisingly, various other network nodes alone or in combination, or various processing units, can perform the functions described herein.

As defined in the following embodiments, the active time is the time between the DRX cycles, that is, the state of the UE listening to the physical downlink control channel for a message from the network. This may include listening to the PDCCH for a schedule request from the network. It is understood that while the methods described above may determine whether a UE is in active time, there may be other mechanisms that bring the UE into or out of active time. Should be. For example, the LTE DRX mechanism includes various timers (eg, on-duration timers and inactivity timers), and the UE may stay in active time while these timers are running.

Conditions for being in active time In one embodiment, the UE may be in a state of listening on the physical downlink control channel for messages from the network from the first trigger to the second trigger of the two-step grant. .. In the embodiments described by FIGS. 6-12, this state is shown as "active time" and the first and second triggers are shown as steps 1 and 2. FIG. 6 illustrates a scenario in which the UE is in active time from step 1 to step 2.

This may either include or not include the TTI in which step 1 and / or step 2 is received in the active time. For example, the active time may include the TTI for which the second trigger (step 2) was received. The active time may also include the TTI for which the first trigger (step 1) was received.

In another embodiment, the UE is in active time from the first trigger until the first trigger becomes invalid. For example, method 500 determines whether the first trigger has been disabled and the device listens for a physical downlink for a message from the network in response to the determination that the first trigger has been disabled. It may include getting out of the state. FIG. 7 illustrates a scenario in which the UE is in active time from step 1 to a predetermined period. If step 2 does not reach within that period, the UE exits active time. For example, this may be the case when step 1 is valid for a predetermined period of time after receiving step 1.

In some cases, method 500 includes starting the timer upon receipt of a first trigger and exiting the above state only upon expiration of the timer. The duration of the timer may be received with the first trigger or by radio resource control, RRC, signaling. In some cases, the timer is stopped in response to the reception of the second trigger. In some embodiments, the device exits the above state only by the expiration of the timer before the second trigger is received.

The combination of the above embodiments may be applied, and the UE is in the above state from the first trigger to the second trigger or until the first trigger becomes invalid. This ensures that the UE continuously monitors the PDCCH, even if the eNB does not provide the UE with a full grant, and the eNB can provide a second trigger, or any other PDCCH transmission, to the UE. Guarantee.

When the UE is in the above state until the second trigger, the UE considers the time when the second trigger is received / decoded. However, it should be noted that the UE may be in active time for other reasons at this point, for example due to the inactivity timer being running.

Some embodiments of this document describe that the UE is in active time from the reception of the first trigger to the reception of the second trigger (or until the first trigger is disabled), and therefore the UE is the second. Describes that it "exits" from the active time in response to the reception of the trigger (or in response to the invalidation of the first trigger), but when the second trigger is received because the timer is running. The UE may stay in active time (or if the first trigger is disabled). FIG. 8 describes a scenario in which the UE is in the active time during a predetermined period after the reception of step 1, and even if step 2 is received, the UE remains in the active time for a certain period. The above period may be the validity of step 1. Therefore, method 500 may include determining whether the device has received a second trigger. Method 500 may also include determining if a particular timer is running, depending on the determination that the device has received a second trigger. Then, the method 500 may include exiting the above state only after the timer expires, depending on the determination that the timer is in operation.

Another possibility is that the UE is in active time until the associated uplink transmission is performed (this time may be indicated by the second trigger). FIG. 9 illustrates a scenario in which the UE is in active time from step 1 to the uplink transmission initiated by step 2. In this case, the method 500 includes receiving the second trigger and exiting the above state in response to the transmission of the uplink transmission triggered by the second trigger.

If the UE is in active time from the first trigger, this may mean that the UE is in active time in response to the reception of the first trigger. This may be, for example, the time when the UE receives / decodes the first trigger in the same subframe, or it may be a subsequent subframe. Another possibility is that the UE is in active time after time T has elapsed since the UE received the first trigger. For example, entering the active time may include waiting for a predetermined period T after receiving the first trigger before entering the active time. This is advantageous, for example, if some time is required by the UE to decrypt the first trigger. That is, it may take some time for the UE to determine that the first trigger has been received and therefore the UE should be in active time. The time T may be specified in the specification and instead it can be signaled to the UE (eg, using RRC / MAC / PDCCH signaling, etc.).

Therefore, FIG. 10 illustrates a scenario in which the UE is in active time from the reception in step 1 to the time T after time to the uplink transmission invoked in step 2. FIG. 11 describes a scenario in which the UE is in the active time from the reception in step 1 to the reception in step 2 after the time T.

Inactivity timer dealing with two-step grants In one embodiment, the UE can start the timer in response to the first trigger being disabled or the second trigger being received, and the timer will operate. The UE is in active time due to the fact that it is in. This timer may be, for example, a timer such as the LTE DRX inactivity timer. Therefore, method 500 may include determining whether the first trigger has been disabled. Depending on the determination that the first timer has been disabled, method 500 then includes starting the timer and exiting the above state only upon expiration of the timer. FIG. 12 illustrates a scenario in which the UE starts a timer (inactivity timer) in response to step 1 being disabled. Therefore, since the timer is running, the UE may be in active time after step 1 is disabled.

The following is an example of how such a method can be implemented in the LTE Medium Access Control (MAC) specification.

Embodiment 1
According to one embodiment of this document, the UE will start a timer in response to the reception of the first trigger, and the UE will be in active time if the timer is running. The duration of this timer may be the duration of the reasonable time of the first trigger. Then, the duration may be indicated to the UE by the first trigger. Another possibility is that the duration can be set by the eNB, for example using RRC signaling.

If the timer is not running, the UE will no longer be in active time (but, as mentioned above, the UE may be in active time for other reasons). The timer may be stopped when the UE receives the second trigger. If the timer expires, the timer is no longer running and therefore the UE will not be in active time.

One possible example of how this can be implemented in the LTE MAC specification is given below (3GPP TS36.321 v13.2.0). The added wording is shown in underlined text.

5.7 Intermittent reception (DRX)
The MAC entities are the MAC entities C-RNTI, TPC-PUCCH-RNTI, TPC-PUSCH-RNTI, semi-persistent scheduling C-RNTI (if configured), eIMTA-RNTI (if configured) and (if configured). It may be set by an RRC with a DRX function that controls the PDCCH monitor operation by the UE for SL-RNTI (if set). In the case of RRC_CONCEPTED, if DRX is set, the MAC entity can monitor the PDCCH discontinuously using the DRX behavior identified in this issue, otherwise the MAC entity will monitor the PDCCH. Monitor continuously. When using the DRX operation, the MAC entity also monitors the PDCCH according to the requirements found in other issues of this specification. The RRC includes timers, namely on-duration timers, drx inactivity timers, drx retransmission timers (one for each DL HARQ process except broadcast processes), drx-UL retransmission timers (one for each asynchronous UL HARQ process). The DRX operation is controlled by setting the long-term DRX cycle, the value of the drx start offset, and possibly the drx short-term cycle timer and the short-term DRX cycle. HARQ RTT timers per DL HARQ process (excluding broadcast processes) and UL HARQ RTT timers per asynchronous UL HARQ are also specified (see issue 7.7).

When the DRX cycle is set, the active time includes the following times:
-The on-duration timer or drx inactivity timer or drx retransmission timer or drx-UL retransmission timer or mac conflict resolution timer (as specified in 5.1.5), or the two-step grant timer Uplink grant for HARQ retransmission during operation or-while scheduling request is sent on PUCCH and pending (as specified in 5.4.4) or-pending May occur, for synchronous HARQ processes while data exists in the corresponding HARQ buffer, or- (as described in issue 5.1.4) for random preambles that have not been selected by the MAC entity. While the PDCCH indicating a new transmission addressed to the MAC entity C-RNTI has not been received after the access response has been successfully received.

When DRX is set, the MAC entity does the following for each subframe:
-If the HARQ RTT timer expires in this subframe
-If the data of the corresponding HARQ process was not successfully decrypted,
-Start the drx retransmission timer for the corresponding HARQ process and
-If NB-IoT, start or restart the drx inactivity timer.
-If the UL HARQ RTT timer expires in this subframe,
-Start the drx-UL retransmission timer for the corresponding HARQ process.
-If NB-IoT, start or restart the drx inactivity timer.
-If a DRX command MAC control element or a long-term DRX command MAC control element is received
-Stop the on-duration timer and
-Drx Stop the inactivity timer.
-If the drx inactivity timer expires or the DRX command MAC control element is received in this subframe
-If a short DRX cycle is set,
-Start or restart the drx short-term cycle timer,
-Use a short DRX cycle.
-Otherwise,
-Use a long-term DRX cycle.
-If the drx short-term cycle timer expires in this subframe,
-Use a long-term DRX cycle.
-If a long-term DRX command MAC control element is received
-Stop the drx short-term cycle timer and
Use a long-term DRX cycle.
-If a short-term DRX cycle is used and [(SFN x 10) + subframe number] mod (short-term DRX cycle) = (drx start offset) mod (short-term DRX cycle), or-a long-term DRX cycle is used, And if [(SFN × 10) + subframe number] mod (long-term DRX cycle) = (drx start offset), then
-Start the on-duration timer.
-During the active time, for PDCCH-subframes, no subframe is required for uplink transmission for half-duplex communication FDD UE operation, and the subframe is half-duplex communication guard subframe [7]. No, and the subframe is not part of the configured measurement gap, and the subframe is not part of the configured sidelink discovery gap for reception, and the subframe is for NB-IoT. If not required for non-PDCCH uplink or downlink transmission, or-for subframes other than PDCCH subframes and for UEs capable of simultaneous reception and transmission within aggregated cells during active time, subframes Is a downlink subframe indicated by eIMTA L1 signaling valid for at least one serving cell not configured with scheduling cell ID [8], and the subframe is of the configured measurement gap. If not part, and if the subframe is not part of the configured sidelink discovery gap for reception
-For UEs that are not capable of simultaneous reception and transmission within subframes other than PDCCH subframes and within aggregated cells during active time, the subframes are downlink subframes indicated by eIMTA L1 signaling valid for Sp cells. If it is a frame, and if the subframe is not part of the configured measurement gap, and if the subframe is not part of the configured sidelink discovery gap for reception.
-Monitor PDCCH and
-If PDCCH indicates DL transmission, or if DL allocation is set for this subframe
-If the UE is an NB-IoT UE, BL UE or UE in enhanced coverage
-Start the HARQ RTT timer for the corresponding HARQ process in the subframe containing the last iteration of the corresponding PDSCH reception.
-Otherwise,
-Start the HARQ RTT timer for the corresponding HARQ process and
-Stop the drx retransmission timer for the corresponding HARQ process.
-If the PDCCH indicates a UL transmission for an asynchronous HARQ process,
-Start the UL HARQ RTT timer for the corresponding HARQ process in the subframe containing the last iteration of the corresponding PUSCH transmission.
-Stop the drx-UL retransmission timer for the corresponding HARQ process.
-If PDCCH indicates a new transmission (DL, UL or SL)
-Start or restart the drx inactivity timer, except for NB-IoT.
-If PDCCH indicates PUSCH trigger A
-Start or restart the 2-step grant timer,
-If PDCCH indicates PUSCH trigger B
-Stop the 2-step grant timer and
-If PDCCH indicates transmission for NB-IoT (DL, UL),
-Stop the drx inactivity timer, drx-UL retransmission timer and on duration timer.
-Grant / allocation / DRX command MAC control received so far, including subframe n-5, when evaluating all DRX active time conditions in the current subframe n, as specified in this issue. If the MAC entity is not in active time considering the element / long-term DRX command MAC control element and the scheduling request sent, type-0-activated SRS [2] will not be reported.
-If CQI masking (cqi-mask) is set up by the upper layer,
-Grant / allocation / DRX command MAC control received so far, including subframe n-5, when evaluating all DRX active time conditions in the current subframe n, as specified in this issue. If the on-duration timer is not running considering the element / long-term DRX command MAC control element, the CQI / PMI / RI / PTI / CRI on the PUCCH will not be reported.
-Otherwise,
-Grant / allocation / DRX command MAC control received so far, including subframe n-5, when evaluating all DRX active time conditions in the current subframe n, as specified in this issue. CQI / PMI / RI / PTI / CRI on PUCCH will not be reported if the MAC entity is not in active time considering the element / long-term DRX command MAC control element and the scheduling request sent.

Whether or not the MAC entity monitors the PDCCH, the MAC entity receives and sends HARQ feedback and, if expected, sends a type-1-activated SRS [2].
Note: The same active time applies to all activated serving cells.
Note: In the case of downlink space multiplexing, TB is received while the HARQ RTT timer is running, before at least N subframes of the current subframe (where N corresponds to the HARQ RTT timer) before the same TB. If the transmission of is received, the MAC entity should process it and restart the HARQ RTT timer.
NOTE: BLs, UEs and UEs in enhanced coverage wait until the last subframe of the configured MPDCCH search space before performing the next specified operation.

Embodiment 2
According to another embodiment, a condition may be added to consider the UE to be in active time, which condition is that the UE is active (as described by the embodiments in this document) if the condition is met. It is in time.

An example of how this can be implemented in the LTE MAC specification is given below (3GPP TS36.321 v13.2.0). The added wording is shown in the underlined text of the alternative example.

Alternative A
Section 5.7, labeled "Intermittent Reception (DRX)", can be partially edited to describe:
When the DRX cycle is set, the active time includes the following times:
-The on-duration timer or drx inactivity timer or drx retransmission timer or drx-UL retransmission timer or mac conflict resolution timer (as specified in 5.1.5), or the two-step grant timer Uplink grant for HARQ retransmission during operation or-while scheduling request is sent on PUCCH and pending (as specified in 5.4.4) or-pending May occur, for synchronous HARQ processes while data exists in the corresponding HARQ buffer, or- (as described in issue 5.1.4) for random preambles that have not been selected by the MAC entity. After successful reception of the access response, while no PDCCH indicating a new transmission addressed to the MAC entity C-RNTI is received, or
-While PUSCH Trigger B has not yet been received for a valid PUSCH Trigger A.

Alternative B
In this alternative, Section 5.7 can be edited, in part (underlined additions), to describe:
When the DRX cycle is set, the active time includes the following times:
-While the on-duration timer or drx inactivity timer or drx retransmission timer or drx-UL retransmission timer or mac conflict resolution timer (as specified in 5.1.5) is running, or- A synchronous HARQ may occur while the scheduling request is sent on the PUCCH and is pending (as specified in 5.4.4) or-an uplink grant for the pending HARQ retransmission may occur. MAC for a process while data is in the corresponding HARQ buffer, or after a successful reception of a random access response for a preamble that has not been selected by the MAC entity (as described in issue 5.1.4). While no PDCCH indicating a new transmission addressed to the entity's C-RNTI has been received, or
-For PUCCH Trigger A While PUSCH Trigger B has not yet been received and PDCCH Trigger A is still in effect.

Alternative C:
According to another alternative, in response to the reception of step 2 or in response to the invalidation of step 1, the UE may be shown to start a drx inactivity timer that puts the UE into active time.

In this alternative, Section 5.7 partially describes:
When the DRX cycle is set, the active time includes the following times:
-The on-duration timer or drx inactivity timer or drx retransmission timer or drx-UL retransmission timer or mac conflict resolution timer (as specified in 5.1.5), or the two-step grant timer Uplink grant for HARQ retransmission during operation or-while scheduling request is sent on PUCCH and pending (as specified in 5.4.4) or-pending May occur, for synchronous HARQ processes while data exists in the corresponding HARQ buffer, or- (as described in issue 5.1.4) for random preambles that have not been selected by the MAC entity. While the PDCCH indicating a new transmission addressed to the MAC entity C-RNTI has not been received after the access response has been successfully received.

When DRX is set, the MAC entity does the following for each subframe:
-If the HARQ RTT timer expires in this subframe
-If the data of the corresponding HARQ process was not successfully decrypted,
-Start the drx retransmission timer for the corresponding HARQ process and
-If NB-IoT, start or restart the drx inactivity timer.
-If the UL HARQ RTT timer expires in this subframe,
-Start the drx-UL retransmission timer for the corresponding HARQ process.
-If NB-IoT, start or restart the drx inactivity timer.
-If a DRX command MAC control element or a long-term DRX command MAC control element is received
-Stop the on-duration timer and
-Drx Stop the inactivity timer.
-If the drx inactivity timer expires or the DRX command MAC control element is received in this subframe
-If a short DRX cycle is set,
-Start or restart the drx short-term cycle timer,
-Use a short DRX cycle.
-Otherwise,
-Use a long-term DRX cycle.
-If the drx short-term cycle timer expires in this subframe,
-Use a long-term DRX cycle.
-If a long-term DRX command MAC control element is received
-Stop the drx short-term cycle timer and
Use a long-term DRX cycle.
-If a short-term DRX cycle is used and [(SFN x 10) + subframe number] mod (short-term DRX cycle) = (drx start offset) mod (short-term DRX cycle), or-a long-term DRX cycle is used, And if [(SFN × 10) + subframe number] mod (long-term DRX cycle) = (drx start offset), then
-Start the on-duration timer.
-During the active time, for PDCCH-subframes, no subframe is required for uplink transmission for half-duplex communication FDD UE operation, and the subframe is half-duplex communication guard subframe [7]. No, and the subframe is not part of the configured measurement gap, and the subframe is not part of the configured sidelink discovery gap for reception, and the subframe is for NB-IoT. If not required for non-PDCCH uplink or downlink transmission, or-for subframes other than PDCCH subframes and for UEs capable of simultaneous reception and transmission within aggregated cells during active time, subframes Is a downlink subframe indicated by eIMTA L1 signaling valid for at least one serving cell not configured with scheduling cell ID [8], and the subframe is of the configured measurement gap. If not part, and if the subframe is not part of the configured sidelink discovery gap for reception
-For UEs that are not capable of simultaneous reception and transmission within subframes other than PDCCH subframes and within aggregated cells during active time, the subframes are downlink subframes indicated by eIMTA L1 signaling valid for Sp cells. If it is a frame, and if the subframe is not part of the configured measurement gap, and if the subframe is not part of the configured sidelink discovery gap for reception.
-Monitor PDCCH and
-If PDCCH indicates DL transmission, or if DL allocation is set for this subframe
-If the UE is an NB-IoT UE, BL UE or UE in enhanced coverage
-Start the HARQ RTT timer for the corresponding HARQ process in the subframe containing the last iteration of the corresponding PDSCH reception.
-Otherwise,
-Start the HARQ RTT timer for the corresponding HARQ process and
-Stop the drx retransmission timer for the corresponding HARQ process.
-If the PDCCH indicates a UL transmission for an asynchronous HARQ process,
-Start the UL HARQ RTT timer for the corresponding HARQ process in the subframe containing the last iteration of the corresponding PUSCH transmission.
-Stop the drx-UL retransmission timer for the corresponding HARQ process.
-If PDCCH indicates a new transmission (DL, UL or SL)
-Start or restart the drx inactivity timer, except for NB-IoT.
-If PDCCH indicates PUSCH trigger A
-Start or restart the 2-step grant timer,
-If PDCCH indicates PUSCH trigger B, or PUSCH trigger A becomes invalid
-Stop the 2-step grant timer and
-Start or resend the drx inactivity timer,
-If PDCCH indicates transmission for NB-IoT (DL, UL),
-Stop the drx inactivity timer, drx-UL retransmission timer and on duration timer.
-Grant / allocation / DRX command MAC control received so far, including subframe n-5, when evaluating all DRX active time conditions in the current subframe n, as specified in this issue. If the MAC entity is not in active time considering the element / long-term DRX command MAC control element and the scheduling request sent, type-0-activated SRS [2] will not be reported.
-If CQI masking (cqi-mask) is set up by the upper layer,
-Grant / allocation / DRX command MAC control received so far, including subframe n-5, when evaluating all DRX active time conditions in the current subframe n, as specified in this issue. If the on-duration timer is not running considering the element / long-term DRX command MAC control element, the CQI / PMI / RI / PTI / CRI on the PUCCH will not be reported.
-Otherwise,
-Grant / allocation / DRX command MAC control received so far, including subframe n-5, when evaluating all DRX active time conditions in the current subframe n, as specified in this issue. CQI / PMI / RI / PTI / CRI on PUCCH will not be reported if the MAC entity is not in active time considering the element / long-term DRX command MAC control element and the scheduling request sent.

Whether or not the MAC entity monitors the PDCCH, the MAC entity receives and sends HARQ feedback and, if expected, sends a type-1-activated SRS [2].
Note: The same active time applies to all activated serving cells.
Note: In the case of downlink space multiplexing, TB is received while the HARQ RTT timer is running, before at least N subframes of the current subframe (where N corresponds to the HARQ RTT timer) before the same TB. If the transmission of is received, the MAC entity should process it and restart the HARQ RTT timer.
NOTE: BLs, UEs and UEs in enhanced coverage wait until the last subframe of the configured MPDCCH search space before performing the next specified operation.

FIG. 13 is a module implemented in software that, when executed by the processor of the UE 14, causes the UE 14 to operate according to the DRX configuration and receive a two-step grant for uplink transmission from the wireless communication network. It is a figure of UE 14 including. The implementation includes a determination module 66 for determining whether the UE 14 has received the first trigger of the two-step grant. The determination module 66 is also intended to bring the UE 14 into a state of listening on the physical downlink control channel in search of a message from the network in response to the determination that the UE 14 has received the first trigger. Implementations may also include a receive module 64 for receiving triggers.

FIG. 14 is implemented in software that causes network node 12 to provide a two-step grant for uplink transmission to a wireless communication device operating according to the DRX configuration when executed by the processor of network node 12. It is a figure of the network node 12 including the module. The implementation is to send the first trigger of the two-step grant and the device is listening on the physical downlink control channel for a message from the network before sending the second trigger of the two-step grant. Includes a transmit module 62 for transmitting physical downlink control channel messages to the device so that it can be received in between. The implementation also includes a configuration determination module 60 for determining the DRX configuration of the wireless device.

Of course, various modules and software elements of the hardware can be used alone or in combination to perform the steps described in this document. In addition, any or all functions may be performed by one or more nodes, such as cloud or other network nodes.

Those skilled in the art will recognize improvements and variations of the embodiments of the present disclosure. All such improvements and modifications are considered to be within the concepts disclosed herein.

Claims (44)

A method (500) performed by a wireless communication device (14) configured to operate according to intermittent reception, DRX, configuration and to receive a two-step grant for uplink transmission from a wireless communication network.
Determining whether the device (14) has received the first trigger of the two-step grant (502) and
In response to the determination that the device (14) has received the first trigger, the device (14) enters a state of listening to the physical downlink control channel in search of a message from the network (504). ,
The method. The method (500) according to claim 1, wherein entering the state includes waiting for a predetermined period after receiving the first trigger before entering the state. The method (500) according to claim 1 or 2.
Determining whether the first trigger has become invalid and
Depending on the determination that the first trigger has become invalid, the exit from the above state and
A method that further comprises. The method (500) according to claim 1 or 2.
Starting the timer in response to the reception of the first trigger,
To get out of the state only when the timer expires,
A method that further comprises. The method (500) according to claim 1 or 2.
Determining whether the first trigger has become invalid and
In response to the determination that the first trigger has become invalid, the timer is started and
To get out of the state only when the timer expires,
A method that further comprises. The method (500) according to claim 4 or 5, wherein the duration of the timer is received together with the first trigger. The method (500) according to claim 4 or 5, wherein the duration of the timer is received by radio resource control, RRC, or signaling. The method (500) according to any one of claims 4 to 7, further comprising stopping the timer in response to receiving a second trigger of the two-step grant. The second trigger of the two-step grant is received to exit the state only in response to the expiration of the timer according to the method (500) according to any one of claims 4 to 7. A method comprising exiting the said state prior. The method (500) according to claim 1 or 2.
Determining whether the device (14) has received the second trigger of the two-step grant.
In response to the determination that the device (14) has received the second trigger, the device (14) exits the state and
A method that further comprises. The method (500) according to claim 1 or 2.
Determining whether the device (14) has received the second trigger of the two-step grant.
In response to the determination that the device (14) has received the second trigger, it is determined whether or not a specific timer is in operation.
Depending on the determination that the timer is in operation, only after the timer has expired will the state be exited.
A method that further comprises. The method (500) according to claim 1 or 2.
Receiving the second trigger of the two-step grant and
In response to the transmission of the uplink transmission activated by the second trigger, the exit from the above state and
A method that further comprises. The method (500) according to any one of claims 8 to 12, wherein the time during which the device is in the state includes a transmission time interval, TTI, in which the second trigger is received. The method (500) according to any one of claims 1 to 13, wherein the time during which the device is in the state includes a transmission time interval, TTI, in which the first trigger is received. A wireless communication device (14) configured to operate according to intermittent reception, DRX, and settings and to receive a two-step grant for uplink transmission from a wireless communication network.
A transmitter / receiver circuit (52) configured for communication with the network, and
A processing circuit (48) that is operably related to the transmitter / receiver circuit (52).
Determining whether the device (14) has received the first trigger of the two-step grant.
A state in which the device (14) listens to a physical downlink control channel in search of a message from the network in response to a determination that the device (14) has received the first trigger. With a processing circuit configured to do
A wireless communication device. The device (14) according to claim 15, wherein the processing circuit (48) waits for a predetermined period after receiving the first trigger before putting the device (14) into the state. A device that is configured to be. The device (14) according to claim 15 or 16, wherein the processing circuit (48) is a device.
Determining whether the first trigger has become invalid and
In response to the determination that the first trigger has been invalidated, the device (14) is brought out of the state.
Device (14) configured to do so. The device (14) according to claim 15 or 16, wherein the processing circuit (48) is a device.
In response to the reception of the first trigger, the timer is started and
The device (14) is brought out of the state only when the timer expires.
A device that is configured to do. The device (14) according to claim 15 or 16, wherein the processing circuit (48) is a device.
Determining whether the first trigger has become invalid and
In response to the determination that the first trigger has become invalid, the timer is started and
The device (14) is brought out of the state only when the timer expires.
A device that is configured to do. The device (14) according to claim 18 or 19, wherein the duration of the timer is received together with the first trigger. The device (14) according to claim 18 or 19, wherein the duration of the timer is received by radio resource control, RRC, or signaling. The device (14) according to any one of claims 18 to 21, wherein the processing circuit (48) stops the timer in response to the reception of the second trigger of the two-step grant. The device is configured in. The device (14) according to any one of claims 18 to 21, wherein the processing circuit (48) receives the second trigger of the two-step grant only in response to the expiration of the timer. A device configured to force the device (14) out of the state before it is done. The device (14) according to claim 15 or 16, wherein the processing circuit (48) is a device.
Determining whether the device (14) has received the second trigger of the two-step grant.
In response to the determination that the device (14) has received the second trigger, the device (14) is brought out of the state.
A device that is configured to do. The device (14) according to claim 15 or 16, wherein the processing circuit (48) is a device.
Determining whether the device (14) has received the second trigger of the two-step grant.
In response to the determination that the device (14) has received the second trigger, it is determined whether or not a specific timer is in operation.
In response to the determination that the timer is in operation, the device (14) is brought out of the state only after the timer expires.
A device that is configured to do. The device (14) according to claim 15 or 16, wherein the processing circuit (48) is a device.
Receiving the second trigger of the two-step grant and
In response to the transmission of the uplink transmission activated by the second trigger, the device (14) is brought out of the state.
A device that is configured to do. A wireless communication device (14) adapted to perform the method (500) according to any one of claims 1-14. A non-temporary computer-readable storage medium (50) that stores a computer program having program instructions, said program instructions configured to operate according to intermittent reception, DRX, and settings, and uplink transmission from a wireless communication network. When executed in the processing circuit (48) of the wireless communication device (14) configured to receive the two-step grant for the device (14).
Determining whether the device (14) has received the first trigger of the two-step grant.
A state in which the device (14) listens to a physical downlink control channel in search of a message from the network in response to a determination that the device (14) has received the first trigger. To enter and
A non-temporary computer-readable storage medium that allows you to do this. A computer having an instruction to cause the at least one processing circuit (48) to execute the method (500) according to any one of claims 1 to 14, when executed by at least one processing circuit (48). ·program. A medium comprising the computer program according to claim 29, wherein the medium is one of an electric signal, an optical signal, a wireless signal, and a computer-readable storage medium (50). .. A wireless communication device (14) configured to operate according to intermittent reception, DRX, and settings and to receive a two-step grant for uplink transmission from a wireless communication network.
A determination module (66) for determining whether the device has received the first trigger of the two-step grant, and
In response to the determination that the device has received the first trigger, the device is put into a state in which the device (14) is listening to a physical downlink control channel in search of a message from the network. Judgment module (66) and
The device. A method (300) performed by a network node (12) of a wireless communication network, wherein the network node (12) performs intermittent reception, DRX, and uplink transmission to a wireless communication device (14) that operates according to settings. The method (300) is configured to provide a two-step grant for.
Sending the first trigger of the two-step grant (302) and
Prior to transmitting the second trigger of the two-step grant, the device (14) is received while listening for a message from the network and listening to the physical downlink control channel. ) To send a physical downlink control channel message (304),
The method. The method (300) of claim 32, further comprising transmitting the second trigger. 32. The method (300) of claim 32 further comprises transmitting the duration of a timer initiated by the device (14), the device (14) only upon expiration of the timer. A method of getting out of the above state. 32. The method of claim 32, further comprising determining whether the device (14) is configured to enter the state before receiving the second trigger. A network node (12) of a wireless communication network, said network node (12) providing a two-step grant for uplink transmission to a wireless communication device (14) that operates according to intermittent reception, DRX, and settings. The network node (12) is configured to provide.
A transmitter / receiver circuit (36) configured for communication with the device (14),
A processing circuit (30) that is operably related to the transmitter / receiver circuit (36).
To transmit the first trigger of the two-step grant via the transmitter / receiver circuit (36), and
Prior to transmitting the second trigger of the two-step grant, the device (14) is received while listening for a message from the network and listening to the physical downlink control channel. Sending a physical downlink control channel message to)
With a processing circuit configured to do
A network node that comprises. The network node (12) according to claim 36, wherein the processing circuit (30) is configured to transmit the second trigger via the transmitter / receiver circuit (36). .. The network node (12) of claim 36, wherein the processing circuit (30) is further configured to transmit the duration of a timer initiated by the device (14). ) Is a network node that exits the state only when the timer expires. Whether the network node (12) of claim 36, the processing circuit (36), is configured to enter the state before the device (14) receives the second trigger. A method that is configured to determine. A network node (12) adapted to perform the method (300) according to any one of claims 32 to 35. A non-temporary computer-readable storage medium (32) that stores a computer program containing program instructions, said program instructions being a network node (12) of a wireless communication network, according to intermittent reception, DRX, and settings. The network node when executed in the processing circuit (30) of the network node (12) configured to provide a two-step grant for uplink transmission to the operating wireless communication device (14). In (12),
Sending the first trigger of the two-step grant and
Prior to transmitting the second trigger of the two-step grant, the device (14) is received while listening for a message from the network and listening to the physical downlink control channel. Sending a physical downlink control channel message to)
A temporary computer-readable storage medium that allows you to do this. A computer having an instruction to cause the at least one processing circuit (30) to execute the method (300) according to any one of claims 32 to 35 when executed by at least 32 processing circuits (30). ·program. A medium comprising the computer program according to claim 42, wherein the medium is one of an electric signal, an optical signal, a wireless signal, and a computer-readable storage medium (32). .. A network node (12) of a wireless communication network, said network node (12) providing a two-step grant for uplink transmission to a wireless communication device (14) that operates according to intermittent reception, DRX, and settings. The network node (12) is configured to provide.
A transmission module (62) for transmitting the first trigger of the two-step grant, and
Prior to transmitting the second trigger of the two-step grant, the device (14) is received while listening for a message from the network and listening to the physical downlink control channel. The transmission module (62) for transmitting a physical downlink control channel message to).
A network node (12).

Images